---
kind: "section"
citation: "46 C.F.R. § 76.27-30"
title: "46"
number: "76.27-30"
heading: "Zoning."
url: "https://uscodex.org/cfr/46/76.27-30"
---

# §76.27-30. Zoning.

- (a) The fire detection system must be divided into separate zones to restrict the area covered by any particular alarm signal.
- (b) The fire detection zone must not include spaces in more than one main vertical zone, except on cabin balconies.
- (c) The fire detection zone must not include spaces on more than one deck, except—
  - (1) Adjacent and communicating spaces on different decks at the ends of the vessel having a combined ceiling area of not more than 3,000 sq ft;
  - (2) Isolated rooms or lockers in such spaces as mast houses or wheelhouse tops, which are easily communicable with the area of the fire detection circuit to which they are connected; and
  - (3) Systems with addressable detectors and manual alarm stations that can have their status individually determined.
- (d) Any fire detection zone with non-addressable detectors and manual pull stations must not contain more than 25 protected rooms or spaces.

## Notes

### Source

Source: USCG-2012-0196, 81 FR 48255, July 22, 2016, unless otherwise noted.

### Authority

Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGFR 65-50, 30 FR 16940, Dec. 30, 1965, unless otherwise noted.